TOOLS · CROSS-SECTION · TEXAS

2 wells, subsea datum

West to east, 2.2 miles end to end. Depths are elevation minus measured depth, so tops line up regardless of surface terrain; a value above zero sits above sea level. Each formation filed in more than one well has its own color, joined between neighboring wells and shaded down to the next formation both filed; nothing is interpolated. Where tops come from →

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-0-2,000-4,000-6,000-8,000-10,000-12,000SUBSEA FTA384 FT ELB420 FT ELAustin ChalkAustin ChalkJames LimeJames LimeHaynesvilleHaynesville

shaded: a formation down to the next one filed in both wellsfiled in one well onlyhover a top or a name to pick out one formation

Tops by well

Subsea feet, with measured depth beneath; a dash where the well has no top filed for the formation.

FormationASun DevilsBMavericks-Broncos
Austin Chalk-3,564MD 3,948-5,960MD 6,380
James Lime-6,838MD 7,222-6,866MD 7,286
Haynesville-11,930MD 12,314-12,380MD 12,800

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Only wells with a location on file can be found by distance; a well with tops but no location can still be added by name or API number.

The tops, as filed

ASun Devils #4H 42-405-30786

XTO Energy Inc. · San Augustine · 384 ft elevation · 20,000 ft TD

FormationMD ftSubsea
Austin Chalk3,948-3,564
James Lime7,222-6,838
Haynesville12,314-11,930

BMavericks-Broncos #1B 42-405-30713

XTO Energy Inc. · San Augustine · 420 ft elevation · 21,500 ft TD

FormationMD ftSubsea
Austin Chalk6,380-5,960
James Lime7,286-6,866
Haynesville12,800-12,380

About this data

Formation tops and elevations from the RRC dbf900 wellbore file (completion filings), names normalized to the formations registry; well identity from the permit record, location from the shared well record. Subsea is elevation minus measured depth. Nothing between filed tops is estimated.

New to these records? completion reports and the wellbore file

Developers: this page as JSON is GET /v1/data/cross-section, documented in the API reference.